EP 1414634 B1 20060301 - PROCESS FOR INJECTION MOULDING
Title (en)
PROCESS FOR INJECTION MOULDING
Title (de)
VERFAHREN ZUM SPRITZGIESSEN
Title (fr)
PROCEDE DE MOULAGE PAR INJECTION
Publication
Application
Priority
- GB 0203200 W 20020710
- GB 0122292 A 20010914
- US 90235401 A 20010710
- US 91823401 A 20010730
Abstract (en)
[origin: WO03006226A1] A process and apparatus for plastics injection moulding comprises injecting a quantity of molten plastics material into a mould cavity (30) and injecting pressurised gas (52) or pressurised liquid into the plastics material in the mould cavity. After holding the pressure of the gas or liquid on the plastics material in the mould cavity for a period of time in order to apply a packing pressure to the plastics material, a portion of the molten plastics material is expelled into one or more secondary cavities (32) or expelled back into the barrel (22) of the injection moulding machine. The step of injecting the plastics material may be effected with or without packing of the plastics material prior to the injection of the pressurised gas or liquid.
IPC 8 full level
B29C 45/17 (2006.01); B29C 45/26 (2006.01); B29C 45/00 (2006.01); B29C 45/76 (2006.01)
CPC (source: EP KR)
B29C 45/17 (2013.01 - KR); B29C 45/1711 (2013.01 - EP); B29C 45/1732 (2013.01 - EP); B29C 45/762 (2013.01 - EP); B29C 2045/1712 (2013.01 - EP); B29C 2045/1713 (2013.01 - EP); B29C 2045/1719 (2013.01 - EP); B29C 2045/173 (2013.01 - EP); B29C 2045/468 (2013.01 - EP); B29C 2945/76498 (2013.01 - EP); B29C 2945/76575 (2013.01 - EP); B29C 2945/76595 (2013.01 - EP); B29C 2945/76665 (2013.01 - EP); B29C 2945/76779 (2013.01 - EP); B29C 2945/76822 (2013.01 - EP); B29C 2945/76862 (2013.01 - EP)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03006226 A1 20030123; AT E318688 T1 20060315; BR 0211084 A 20041214; CN 100410050 C 20080813; CN 1458876 A 20031126; DE 60209505 D1 20060427; DE 60209505 T2 20061116; DE 60209505 T3 20121025; EP 1414634 A1 20040506; EP 1414634 B1 20060301; EP 1414634 B2 20120509; ES 2262823 T3 20061201; JP 2004533948 A 20041111; JP 4545435 B2 20100915; KR 100885336 B1 20090226; KR 20040023808 A 20040319; PT 1414634 E 20060731; TW 548173 B 20030821
DOCDB simple family (application)
GB 0203200 W 20020710; AT 02751307 T 20020710; BR 0211084 A 20020710; CN 02800605 A 20020710; DE 60209505 T 20020710; EP 02751307 A 20020710; ES 02751307 T 20020710; JP 2003512018 A 20020710; KR 20047000383 A 20020710; PT 02751307 T 20020710; TW 91115211 A 20020709